South Carolina junior running back Marcus Lattimore suffered a gruesome knee injury Saturday afternoon in the second quarter of the Gamecock’s SEC matchup with Tennessee.

Lattimore took a helmet to his right knee from a Volunteer defender with under five minutes remaining in the first half, and stayed down until trainers eventually carted him off the field.

There is no current update on Lattimore's condition.

As trainers prepared to take him off the field, his teammates and even Tennessee players came to the center of the field to support Lattimore, who leads the Gamecocks with 597 rushing yards and 10 touchdowns this season.

Last season Lattimore tore ligaments in his left knee, but the star managed to return this season and was seen as a top prospect for the 2013 NFL Draft.

The 20-year-old was cleared to play this week after recovering from a hip bruise, as he took only three carries for 13 yards in South Carolina’s 44-11 loss to No. 3 Florida last week.

The injury Saturday was similar to NFL running back Willis McGahee’s, who blew out his knee when he was a member of the Miami Hurricanes in their national championship loss to the Ohio State Buckeyes in the 2003 Fiesta Bowl.

McGahee would later recover and has played for three teams in nine NFL seasons, and has made two Pro Bowls.

The video below shows the injury, and is graphic in nature. Please watch at your own discretion.